10BNL (Pressure Spring)

Genuine Shimano pressure spring (part #10BNL) — a tension spring used in the drag system of Shimano conventional reels to maintain consistent pressure on internal components. This spring ensures reliable drag engagement and smooth operation during extended fights with large fish. Cross-references with Shimano part numbers TT-0163, TGT0797, and TLD0017 for wide compatibility across Shimano Tiagra, TLD, and Torium reel models. OEM replacement for factory-spec performance. Available from Offshore Tackle & Repair in Stuart, FL — authorized Shimano parts dealer on Florida's Treasure Coast.